'Grimm' season 5 finale spoilers news: Black Claw uses Diana to take over the government, one character's life to be put in danger?

Supernatural drama series "Grimm" will air its special two-part final episode for season 5 this coming Friday, and rumors claim that a character's life might be in danger.

According to the official synopsis, parts one and two will feature a fatal battle as Black Claw moves forward with its plan to take over the government. Black Claw executes a "strategic move against Hank (Russell Hornsby)" to shock everyone while  Nick (David Giuntoli) will be sent to war. Hadrian's Wall works on a case investigating a mysterious person known as Bonaparte (guest star Shaun Toub). On another note, Capt. Renard (Sasha Roiz) and Adalind (Claire Coffee) must begin trying to get used to their "new and very unpredictable reality" as Diana (guest star Hannah R. Loyd) enters the picture.

Diana's arrival might seem positive since Renard and Adalind will finally have the family reunion they have waited for in a long time, but it is less likely to happen. Their daughter will be used by Black Claw to play very important role in their evil plan to take over the government, which is also one of the highlights in the finale. "[Diana] is still this source of tremendous power that we just don't know,"  star Sasha Roiz explained via TV Line. "She'll prove to be an asset moving forward."

Furthermore, Renard will ask help from Adalind to control Diana from what she's doing, and it will put them in the middle of the deadly fight between Hadrian's Wall and Black Claw. Meanwhile, Nick along with the Scooby gang will also make a move in order to put a stop to a global westen rebellion.

Catch the "Grimm" season 5 special two-part finale which airs this coming May 20, Friday at 8 p.m. on  NBC. The preview for "The Beginning of the End" parts 1 and 2 can be viewed here.